数学中的每一个问题都是学习新东西的机会。

Leadership is not about being in charge. It's about taking care of those in your charge.

Life is short, and it's up to you to make it sweet.

我不能没有书。

The ability to change constantly and effectively is made possible by high-level strategic planning.

聪明不是不犯错误，而是很快发现改正错误的方式。

当没有人相信你时，你必须相信自己。